Effects of seed size and spacing of seed tubers and stems on yields of early and canning potatoes

Abstract

SummaryAn experiment comparing most combinations of six seed sizes and four spacings between seeds to give a range of common seed rates, was repeated for 3 years with the eultivar Ulster Prince. For the earliest harvest, total yield was reasonably related to seed rate, but for subsequent harvests the yield response was more closely related to number of stems; this pattern was more pronounced in yields of the canning grade.